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zvonat [6]
3 years ago
5

Add.

Mathematics
1 answer:
baherus [9]3 years ago
7 0
58+28=86.
8+8=16
5+2=7
take the 1 from 16 and add it onto the 7
1+7=8: thats the tens place.
Now we only have 6. So thats the ones place. Combine the two numbers and you get 86.
You might be interested in
The perpendicular bisectors of triangle RST intersect at K. Find KR
ivanzaharov [21]

Answer:

Step-by-step explanation:

Remark

The diagram is a mess of lines; you have to guess where that 12 belongs. Just to make the question a bit more interesting, I'm going to say the 12 belongs to the perpendicular.

If that's true you can find KT using Pythagorus. KT and RT are equal. (SSS)

So, let's go.

Givens

1/2 of ST = 1/2 32 = 16

12 is the leg of the small triangle KT and the third point where the perpenduclar line meets ST.

Solution

KT^2 = 16^2 + 12^2

KT^2 = 256 + 144

KT^2 = 400

KT = sqrt(400)

KT = 20

RK = KT because parts of a congruent triangle = parts of the other triangle containing the line (KT) that you are trying to find the length of.

7 0
3 years ago
What is the surface area for this?
chubhunter [2.5K]

look on Google for the answers

4 0
3 years ago
Someone can explain to me how I have to do this? please
frosja888 [35]

Answer:

A=r×r

64=r×rبالجذر

r=8

5 0
4 years ago
Read 2 more answers
Please Help! Show all the steps!
likoan [24]

You can start by subtracting different equations from each other.

3x + 2y + 3z = 1

subtract

3x + 2y + z = 7

2z = -6

divide by 2

z = -3

add the following two expressions together:

3x + 2y + z = 7

3x + 2y + 3z =1

6x + 4y + 4z = 8

subtract the following two expressions:

6x + 4y + 4z = 8

5x + 5y + 4z = 3

x - y = 5

^multiply the whole equation above by 3

3x - 3y = 15

subtract the following two expressions:

3x - 3y = 15

3x + 2y = 10

-5y = 5

divide each side by -5

y=-1

take the following expression from earlier:

x - y = 5

substitute y value into above equation

x - - 1 = 5

2 negatives make a positive

x + 1 = 5

subtract 1 from each side

x = 4

Therefore x = 4, y = -1, z = -3

I checked these with all 3 equations and they worked :)

(it's quite complicated, comment if you don't understand anything) :)

7 0
4 years ago
Plot the zeros of the function and select the correct end behavior of function's graph.
dem82 [27]
<u><em>Answer:</em></u>
As x approaches negative infinity, f (x) approached negative infinity

<u><em>Explanation:</em></u>
The graph of the given function is shown in the attached image.

<u><em>Let's check the options given:</em></u>
<u>Option 1:</u>
<span>As x approaches positive infinity, f(x) approaches negative infinity.
This option is incorrect as we can note that as the value of x increases approaching positive infinity, the value of f (x) also increases approaching positive infinity

<u>Option 2:</u>
</span><span>As x approaches negative infinity. f(x) approaches negative infinity.
</span>This option is correct as we can note that as the value of x decreases approaching negative infinity, the value of f (x) also decreases approaching negative infinity

<u>Option 3:</u>
<span>As x approaches negative infinity, f(x) approaches positive infinity.
</span>This option is incorrect as we can note that as the value of x decreases approaching negative infinity, the value of f (x) also decreases approaching negative infinity

<u>Option 4:</u>
<span>As x approaches positive infinity, f(x) remains constant.
</span>This option is incorrect as we can note that as the value of x increases approaching positive infinity, the value of f (x) also increases approaching positive infinity

Hope this helps :)

3 0
3 years ago
Read 2 more answers
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